diff --git a/CHANGELOG.md b/CHANGELOG.md
index 21e683d7cc..609bf8f680 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,13 @@ All notable changes to this project will be documented in this file.
 
 The changelog format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [0.12.3] - 20-Jun-2019
+
+- Fixed null mosaic property in MosaicHttp
+- Added NodeHttp
+- Fixed Uint8 conversions (control char added)
+- Fixed ResolutionStatementDTO in exports
+
 ## [0.12.2] - 17-Jun-2019
 
 - Removed nem2-library dependency
diff --git a/README.md b/README.md
index 368d7f0e8d..35ee25e2ee 100644
--- a/README.md
+++ b/README.md
@@ -12,9 +12,9 @@ with the NEM2 (a.k.a Catapult)
 
 ### _Dragon_ Network Compatibility (catapult-server@0.4.0.1)
 
-Due to a network upgrade with [catapult-server@dragon](https://github.com/nemtech/catapult-server/releases/tag/v0.4.0.1) version, **it is recommended to use this package's 0.12.2 version and upwards to use this package with Dragon versioned networks**.
+Due to a network upgrade with [catapult-server@dragon](https://github.com/nemtech/catapult-server/releases/tag/v0.4.0.1) version, **it is recommended to use this package's 0.12.3 version and upwards to use this package with Dragon versioned networks**.
 
-The upgrade to this package's [version v0.12.2](https://github.com/nemtech/nem2-sdk-typescript-javascript/releases/tag/v0.12.2) is mandatory for **dragon compatibility**.
+The upgrade to this package's [version v0.12.3](https://github.com/nemtech/nem2-sdk-typescript-javascript/releases/tag/v0.12.3) is mandatory for **dragon compatibility**.
 
 ### _Cow_ Network Compatibility (catapult-server@0.3.0.2)
 
diff --git a/package-lock.json b/package-lock.json
index 8d82889cd4..2ce0ef66c3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "nem2-sdk",
-  "version": "0.12.2",
+  "version": "0.12.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 71b4908535..2d65511ed6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "nem2-sdk",
-  "version": "0.12.2",
+  "version": "0.12.3",
   "description": "Reactive Nem2 sdk for typescript and javascript",
   "scripts": {
     "pretest": "npm run build",